Wyoming Senate hopeful Liz Cheney said bluntly on Friday that she is “not pro-gay marriage.”

Cheney, who is mounting a Republican primary challenge to Sen. Mike Enzi (R-Wyo.), made the remark in a statement, which is posted on her website. Her sister, Mary Cheney, is openly gay.

“I am strongly pro-life and I am not pro-gay marriage,” she said in the statement. “I believe the issue of marriage must be decided by the states, and by the people in the states, not by judges and not even by legislators, but by the people themselves.”

The statement cited reports that Cheney was the subject of a “push poll” in which people were asked, “Are you aware that Liz Cheney supports abortion and aggressively promotes gay marriage?”

“I call on Senator Enzi to denounce this poll and to tell the National Republican Senatorial Committee, or anyone else promoting untruths on his behalf, to stop,” she said.

A spokesman for Enzi took exception to that statement.

“Neither Mike Enzi’s campaign, nor anyone affiliated with his campaign, has conducted any polls in Wyoming,” spokesman Coy Knobel said in an email. “He would never support a push-poll, or tolerate anyone working for him who conducted one. For Liz Cheney to assert otherwise, without any proof whatsoever, shows more about her campaign than Mike Enzi’s.”

The NRSC is also not polling in Wyoming, a spokesman said.

”With all due respect, it looks like Liz Cheney is fishing without a license again,” NRSC spokesman Brad Dayspring said.